How to interface System to External Hardware
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I want to do one project in VC++, that is in our Laboratory we are using one equipment for Blood Test & Urine Test that Equipment itself generating one report for us. But I want to connect that equipment to my system through Printer port and want to have control over equipment.This is my project brief description. For to start this project I want some functions which will help to send the Data to equipment and to get response & Data from the equipment.kindly help.
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I want to do one project in VC++, that is in our Laboratory we are using one equipment for Blood Test & Urine Test that Equipment itself generating one report for us. But I want to connect that equipment to my system through Printer port and want to have control over equipment.This is my project brief description. For to start this project I want some functions which will help to send the Data to equipment and to get response & Data from the equipment.kindly help.
The first thing to do is to find out if the equipment actually ACCEPTS commands through the printer port (which would be a little unusual - that type of control is usually done through a serial port). Are there any manuals for the equipment that describe the remote control capabilities and message and command formats? If so, then that is the place to start. Once you find out FROM THE MACHINE HOW IT WANTS TO TALK, then you can start the process of how to implement a communication protocol in VC++. Hope this helps, John